:root{
  --black:#0E0B0B; --coal:#171212; --coal2:#211A1A; --ash:#2C2323;
  --red:#A3171F; --red2:#C4222B; --wine:#5E0F14; --blush:#E7B4AE;
  --cream:#F2EBE6; --mute:#9C8E8A; --mute2:#6F6360; --line:rgba(242,235,230,.12); --line2:rgba(242,235,230,.24);
  --serif:'DM Serif Display',Georgia,serif; --sans:'Outfit',system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--black);color:var(--cream);font-family:var(--sans);font-weight:300;line-height:1.7;font-size:16px;text-align:center;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.col{max-width:720px;margin:0 auto;padding:0 20px}
.wide{max-width:1100px;margin:0 auto;padding:0 20px}
.eyebrow{display:inline-flex;align-items:center;gap:12px;font-size:.68rem;letter-spacing:.34em;text-transform:uppercase;color:var(--mute);font-weight:500}
.eyebrow::before,.eyebrow::after{content:"";width:22px;height:1px;background:var(--red2)}
h1,h2,h3{font-family:var(--serif);font-weight:400}
h1{font-size:clamp(3.1rem,9.6vw,8rem);line-height:.92;letter-spacing:-.02em}
h2{font-size:clamp(2.2rem,5.6vw,4.3rem);line-height:1.02;margin:18px auto 22px;max-width:14em;letter-spacing:-.01em}
h3{font-size:1.7rem;line-height:1.15}
em{font-style:italic;color:var(--red2)}
.lead{font-size:1.08rem;color:#CFC4BF;max-width:34em;margin:0 auto}
.small{font-size:.8rem;color:var(--mute);max-width:42em;margin:0 auto}
.sec{padding:clamp(90px,14vw,170px) 0;position:relative}
.btn{display:inline-flex;align-items:center;gap:12px;padding:16px 30px;border-radius:999px;background:var(--red);color:var(--cream);text-decoration:none;font-size:.9rem;letter-spacing:.03em;border:1px solid var(--red);transition:background .3s,color .3s,border-color .3s}
.btn:hover{background:transparent;color:var(--cream);border-color:var(--red2)}
.btn.line{background:transparent;border-color:var(--line2)}
.btn.line:hover{border-color:var(--cream)}
.btn .ar{transition:transform .3s}
.btn:hover .ar{transform:translateX(4px)}

/* ad + header */
.ad{font-size:.7rem;letter-spacing:.06em;padding:10px 16px;background:var(--red);color:#FBE9E7}
.ad b{font-weight:600;letter-spacing:.26em;margin-right:10px;color:#fff}
.ad button{text-decoration:underline;text-underline-offset:3px;margin-left:8px;font-size:inherit}
header.hd{padding:28px 16px 0;display:flex;flex-direction:column;align-items:center;gap:4px}
.mark{display:flex;align-items:center;gap:10px;font-family:var(--serif);font-size:1.8rem;text-decoration:none;letter-spacing:.02em}
.mark i{width:10px;height:10px;border-radius:50%;background:var(--red2);box-shadow:0 0 18px 4px rgba(196,34,43,.55)}
.mark-sub{font-size:.6rem;letter-spacing:.32em;color:var(--mute);text-transform:uppercase}

/* ===== HERO ===== */
.hero{position:relative;overflow:hidden;padding:46px 0 80px}
.hero::before{content:"";position:absolute;left:50%;top:44%;width:min(900px,140vw);aspect-ratio:1;transform:translate(-50%,-50%);background:radial-gradient(circle,rgba(163,23,31,.42) 0%,rgba(94,15,20,.22) 32%,transparent 64%);pointer-events:none}
.hero>*{position:relative}
.hero h1{margin-top:20px}
.stage{position:relative;width:min(460px,84vw);aspect-ratio:1;margin:30px auto 10px;perspective:900px}
.tilt{position:absolute;inset:0;transform-style:preserve-3d;transition:transform .2s ease-out}
.orb{position:absolute;inset:8%;border-radius:50%;background:radial-gradient(circle at 50% 35%,#F7EEEC 0%,#E9D9D5 55%,#CDB4AF 100%);overflow:hidden;display:flex;align-items:center;justify-content:center;box-shadow:0 40px 90px -30px rgba(163,23,31,.75),inset 0 -20px 50px rgba(94,15,20,.18)}
.orb img{width:44%;transform:rotate(-12deg);filter:drop-shadow(0 22px 26px rgba(94,15,20,.35));animation:float 7s ease-in-out infinite}
@keyframes float{50%{transform:rotate(-9deg) translateY(-10px)}}
.orb .ph{display:none}
.orb.err img{display:none}.orb.err .ph{display:block;width:70%}
.glare{position:absolute;inset:8%;border-radius:50%;background:radial-gradient(circle at var(--gx,35%) var(--gy,25%),rgba(255,255,255,.38),transparent 45%);pointer-events:none;mix-blend-mode:soft-light}
.stroke-ring{position:absolute;inset:0;width:100%;height:100%;overflow:visible}
.stroke-ring circle{fill:none;stroke:var(--red2);stroke-width:1;stroke-linecap:round;stroke-dasharray:60 1200;animation:sweep 7s linear infinite;transform-origin:50% 50%}
.stroke-ring circle.b{stroke:var(--line2);stroke-dasharray:none;animation:none}
@keyframes sweep{to{stroke-dashoffset:-1260}}
.price-chip{position:absolute;right:2%;top:12%;background:var(--black);border:1px solid var(--red2);border-radius:999px;padding:8px 14px;font-size:.72rem;letter-spacing:.06em;transform:translateZ(40px)}
.price-chip b{font-family:var(--serif);font-weight:400;font-size:1.1rem;margin-left:4px}
.stone-chip{position:absolute;left:0;bottom:14%;background:var(--cream);color:var(--black);border-radius:999px;padding:7px 14px;font-size:.66rem;letter-spacing:.2em;text-transform:uppercase;font-weight:500;transform:translateZ(30px)}
.credit{font-size:.62rem;letter-spacing:.14em;color:var(--mute2);margin-top:6px}
.hero .lead{margin-top:28px}
.hero .cta{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:32px}

/* marquee */
.marq{border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden;white-space:nowrap;padding:18px 0;background:var(--coal)}
.marq div{display:inline-block;animation:mq 38s linear infinite;font-family:var(--serif);font-size:1.6rem;color:var(--mute)}
.marq span{margin:0 26px}
.marq span.r{color:var(--red2);font-style:italic}
@keyframes mq{to{transform:translateX(-50%)}}

/* ===== TRACE ===== */
.trace-box{position:relative;width:min(400px,88vw);margin:40px auto 0;aspect-ratio:4/5;border-radius:200px 200px 40px 40px;background:radial-gradient(ellipse at 50% 30%,var(--coal2),var(--coal) 70%);border:1px solid var(--line);overflow:hidden;touch-action:none}
.trace-box svg,.trace-box canvas{position:absolute;inset:0;width:100%;height:100%;display:block}
.trace-box canvas{cursor:crosshair}
.face-line{fill:none;stroke:rgba(242,235,230,.4);stroke-width:1.2}
.guide{fill:none;stroke:rgba(242,235,230,.28);stroke-width:1.4;stroke-dasharray:3 7;stroke-linecap:round;transition:stroke .4s}
.guide.done{stroke:var(--red2);stroke-dasharray:none;stroke-width:2}
.guide-dot{fill:var(--red2)}
.trace-hud{display:flex;justify-content:center;align-items:center;gap:22px;margin-top:22px;flex-wrap:wrap}
.trace-hud .num{font-family:var(--serif);font-size:2.2rem;line-height:1}
.trace-hud .num small{font-size:1rem;color:var(--mute)}
.trace-hud .bar{width:160px;height:3px;border-radius:3px;background:var(--line);overflow:hidden}
.trace-hud .bar i{display:block;height:100%;width:0;background:var(--red2);transition:width .4s}
.trace-msg{min-height:3.4em;margin-top:14px;color:#CFC4BF;font-size:.95rem}
.trace-hint{position:absolute;left:0;right:0;bottom:16px;font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--mute);pointer-events:none;transition:opacity .4s}

/* ===== DUO PHOTOS ===== */
.duo{display:flex;justify-content:center;align-items:flex-start;gap:clamp(18px,3vw,36px);margin:56px auto 0;padding:0 20px;max-width:960px}
.arch{width:min(420px,44vw)}
.arch .frame{border-radius:240px 240px 26px 26px;overflow:hidden;aspect-ratio:4/5;background:var(--coal2);position:relative;box-shadow:0 30px 70px -30px rgba(163,23,31,.6)}
.arch .frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(14,11,11,.55));pointer-events:none}
.arch img{width:100%;height:100%;object-fit:cover;transition:transform 1.2s cubic-bezier(.2,.7,.2,1)}
.arch:hover img{transform:scale(1.05)}
.arch.d2{margin-top:90px}
.arch figcaption{margin-top:18px;font-size:.88rem;color:#CFC4BF}
.arch figcaption b{display:block;font-family:var(--serif);font-weight:400;font-size:2rem;color:var(--red2);line-height:1;margin-bottom:6px}
/* photo band */
.band{position:relative;min-height:min(80vh,640px);display:flex;align-items:center;justify-content:center;overflow:hidden;padding:80px 20px}
.band img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:50% 40%;filter:grayscale(1) contrast(1.05)}
.band::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(14,11,11,.75),rgba(94,15,20,.55) 50%,rgba(14,11,11,.85));mix-blend-mode:multiply;z-index:1}
.band::after{content:"";position:absolute;inset:0;background:rgba(163,23,31,.28);mix-blend-mode:color;z-index:1}
.band .q{position:relative;z-index:2;font-family:var(--serif);font-size:clamp(2.2rem,6vw,4.8rem);line-height:1.02;max-width:12em}
.band .q em{color:var(--blush)}
.band small{position:absolute;z-index:2;bottom:16px;left:0;right:0;font-size:.6rem;letter-spacing:.2em;color:rgba(242,235,230,.6);text-transform:uppercase}
/* real stone + hotspots */
.stone-real{position:relative;width:min(300px,62vw);margin:48px auto 0}
.stone-real img{width:100%;filter:drop-shadow(0 30px 30px rgba(163,23,31,.28))}
.spot{position:absolute;width:40px;height:40px;transform:translate(-50%,-50%);border-radius:50%;display:flex;align-items:center;justify-content:center}
.spot i{width:14px;height:14px;border-radius:50%;background:var(--red);box-shadow:0 0 0 4px rgba(242,235,230,.9);position:relative;transition:transform .3s}
.spot i::after{content:"";position:absolute;inset:-8px;border-radius:50%;border:1px solid var(--red);animation:pulse 2s ease-out infinite}
@keyframes pulse{from{transform:scale(.6);opacity:1}to{transform:scale(1.8);opacity:0}}
.spot span{position:absolute;white-space:nowrap;font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;background:var(--black);color:var(--cream);padding:5px 10px;border-radius:999px;opacity:0;transition:opacity .3s;pointer-events:none}
.spot.on i{transform:scale(1.25);background:var(--black)}
.spot.on span{opacity:1}
.spot.r span{left:42px}.spot.l span{right:42px}
.seller-stone{width:120px;margin:0 auto 26px;transform:rotate(14deg);filter:drop-shadow(0 18px 24px rgba(163,23,31,.5))}
.capsule .thumb{width:38px;height:38px;border-radius:50%;background:var(--cream);display:flex;align-items:center;justify-content:center;margin-left:-14px;flex:none}
.capsule .thumb img{width:56%;transform:rotate(-12deg)}

/* ===== EDGES ===== */
.edges{background:var(--cream);color:var(--black)}
.edges .eyebrow{color:var(--mute2)}
.edges .lead{color:#4a3f3d}
.edges em{color:var(--red)}
.stone-wrap{width:min(520px,92vw);margin:40px auto 0}
.stone-wrap svg{width:100%;height:auto;display:block;overflow:visible}
.stone-body{fill:url(#rq);stroke:rgba(14,11,11,.25);stroke-width:1}
.edge{fill:none;stroke:transparent;stroke-width:14;stroke-linecap:round;cursor:pointer}
.edge-vis{fill:none;stroke:var(--black);stroke-width:2;stroke-linecap:round;opacity:0;transition:opacity .35s,stroke .35s;pointer-events:none}
.edge-vis.on{opacity:1;stroke:var(--red)}
.edge-lbl{font-family:var(--sans);font-size:10px;letter-spacing:3px;text-transform:uppercase;fill:#7b6d6a}
.edge-tabs{display:inline-flex;border:1px solid rgba(14,11,11,.2);border-radius:999px;padding:4px;margin-top:28px;max-width:100%}
.edge-tabs button{padding:9px 18px;border-radius:999px;font-size:.82rem;white-space:nowrap;transition:all .3s}
.edge-tabs button.on{background:var(--black);color:var(--cream)}
.edge-info{max-width:520px;margin:26px auto 0;min-height:150px}
.edge-info h3{margin-bottom:8px}
.edge-info p{color:#4a3f3d}
.edge-info .zones{display:flex;justify-content:center;gap:8px;flex-wrap:wrap;margin-top:16px}
.edge-info .zones span{font-size:.68rem;letter-spacing:.16em;text-transform:uppercase;padding:6px 12px;border-radius:999px;background:var(--red);color:var(--cream)}

/* ===== RITUAL ===== */
.ritual{list-style:none;max-width:560px;margin:50px auto 0;position:relative}
.ritual::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:1px;background:linear-gradient(var(--red2),transparent)}
.ritual li{position:relative;padding:0 0 58px}
.ritual li .n{position:relative;display:inline-flex;align-items:center;justify-content:center;width:58px;height:58px;border-radius:50%;background:var(--black);border:1px solid var(--red2);font-family:var(--serif);font-size:1.5rem;margin-bottom:16px;transition:background .4s}
.ritual li.in .n{background:var(--red)}
.ritual li h3{font-size:1.55rem;margin:0 auto 6px;display:table;background:var(--black);padding:0 10px}
.ritual li p{color:#CFC4BF;font-size:.96rem;max-width:30em;margin:0 auto;background:var(--black);padding:2px 6px}
.ritual li .t{display:inline-block;margin-top:8px;font-size:.66rem;letter-spacing:.24em;text-transform:uppercase;color:var(--red2);background:var(--black);padding:0 6px}

/* temperature toggle */
.temp{display:flex;flex-direction:column;align-items:center;gap:20px;margin-top:20px}
.tgl{position:relative;width:min(320px,90vw);white-space:nowrap;height:52px;border-radius:999px;background:var(--coal2);border:1px solid var(--line2);display:grid;grid-template-columns:1fr 1fr;align-items:center;font-size:.82rem}
.tgl span{position:relative;z-index:1;transition:color .3s}
.tgl i{position:absolute;top:4px;bottom:4px;left:4px;width:calc(50% - 4px);border-radius:999px;background:var(--cream);transition:left .4s cubic-bezier(.2,.7,.2,1)}
.tgl[aria-checked="true"] i{left:50%}
.tgl span.on{color:var(--black)}
.thermo{font-family:var(--serif);font-size:clamp(3rem,8vw,5rem);line-height:1;transition:color .5s}
.temp-txt{max-width:480px;color:#CFC4BF;font-size:.96rem;min-height:5em}

/* ===== TRUTH (flip) ===== */
.flip{perspective:1400px;width:min(560px,100%);margin:44px auto 0;cursor:pointer}
.flip-in{position:relative;transform-style:preserve-3d;transition:transform .9s cubic-bezier(.2,.7,.2,1);min-height:420px}
.flip.turned .flip-in{transform:rotateY(180deg)}
.face{position:absolute;inset:0;backface-visibility:hidden;-webkit-backface-visibility:hidden;border-radius:30px;padding:44px 34px;display:flex;flex-direction:column;align-items:center;justify-content:center}
.face.front{background:var(--red);color:var(--cream)}
.face.back{background:var(--cream);color:var(--black);transform:rotateY(180deg)}
.face h3{font-size:2rem;margin-bottom:18px}
.face ul{list-style:none}
.face li{font-size:1.02rem;padding:9px 0;border-bottom:1px solid rgba(255,255,255,.18)}
.face.back li{border-color:rgba(14,11,11,.12)}
.face li:last-child{border-bottom:0}
.face .turn{margin-top:20px;font-size:.66rem;letter-spacing:.26em;text-transform:uppercase;opacity:.75}

/* ===== CHECK ===== */
.check{background:var(--coal)}
.qbox{max-width:600px;margin:40px auto 0;border:1px solid var(--line2);border-radius:30px;padding:44px 28px 36px;min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center;background:radial-gradient(ellipse at 50% 0%,rgba(163,23,31,.16),transparent 60%)}
.qbox .qn{font-size:.66rem;letter-spacing:.3em;color:var(--mute);text-transform:uppercase}
.qbox .qt{font-family:var(--serif);font-size:clamp(1.45rem,3.4vw,2.05rem);line-height:1.22;margin:16px 0 30px;max-width:16em;animation:fu .45s ease both}
@keyframes fu{from{opacity:0;transform:translateY(12px)}}
.qbox .yn{display:flex;gap:12px}
.qbox .yn button{min-width:120px;padding:13px 22px;border-radius:999px;border:1px solid var(--line2);font-size:.9rem;transition:all .3s}
.qbox .yn button:hover{background:var(--cream);color:var(--black)}
.qbar{width:min(260px,70%);height:2px;background:var(--line);margin:30px auto 0;border-radius:2px;overflow:hidden}
.qbar i{display:block;height:100%;background:var(--red2);transition:width .4s}
.qbox .res p{color:#CFC4BF;max-width:30em;margin:0 auto 24px;font-size:.95rem}
.qbox .again{margin-top:16px;font-size:.78rem;text-decoration:underline;text-underline-offset:3px;color:var(--mute)}

/* ===== SELLER ===== */
.big{font-family:var(--serif);font-size:clamp(2.6rem,7.4vw,6rem);line-height:.98}
.big em{display:block}
.flow{display:flex;justify-content:center;align-items:flex-start;margin:56px auto 50px;max-width:820px}
.flow div{flex:1;position:relative;padding:0 10px}
.flow div::before{content:"";position:absolute;top:22px;left:50%;right:-50%;height:1px;background:var(--line2)}
.flow div:last-child::before{display:none}
.flow b{position:relative;z-index:1;display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:50%;background:var(--black);border:1px solid var(--line2);font-family:var(--serif);font-weight:400;font-size:1.2rem}
.flow div.us b{background:var(--cream);color:var(--black)}
.flow div.sel b{border-color:var(--red2)}
.flow span{display:block;margin-top:14px;font-size:.84rem;color:#CFC4BF;line-height:1.5}
.flow small{display:block;font-size:.6rem;letter-spacing:.2em;color:var(--mute);text-transform:uppercase;margin-top:4px}

/* FAQ */
.faq{max-width:640px;margin:40px auto 0}
.faq details{border-top:1px solid var(--line)}
.faq details:last-child{border-bottom:1px solid var(--line)}
.faq summary{list-style:none;cursor:pointer;padding:22px 30px 30px;font-family:var(--serif);font-size:1.35rem;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);color:var(--red2);font-family:var(--sans);font-size:1rem;transition:transform .3s}
.faq details[open] summary::after{transform:translateX(-50%) rotate(45deg)}
.faq .a{padding:0 10px 26px;color:#CFC4BF;font-size:.95rem;max-width:34em;margin:0 auto}

footer{background:#070505;color:var(--mute);padding:80px 0 50px;font-size:.84rem;border-top:1px solid var(--wine)}
footer .mark{justify-content:center;color:var(--cream)}
footer .disc{max-width:760px;margin:30px auto 34px;line-height:1.8;font-size:.82rem}
footer .disc b{color:var(--cream);font-weight:500}
footer nav{display:flex;justify-content:center;gap:22px;flex-wrap:wrap;margin:22px 0}
footer nav button{color:var(--mute);text-decoration:underline;text-underline-offset:3px;font-size:.82rem}
footer nav button:hover{color:var(--cream)}
footer .fine{font-size:.62rem;letter-spacing:.2em;text-transform:uppercase;color:#5a4e4b;margin-top:24px}

.capsule{position:fixed;left:50%;bottom:18px;transform:translate(-50%,150%);z-index:60;display:flex;align-items:center;gap:14px;background:rgba(14,11,11,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--wine);border-radius:999px;padding:7px 7px 7px 22px;transition:transform .5s cubic-bezier(.2,.7,.2,1);max-width:calc(100% - 24px);box-shadow:0 14px 40px -12px rgba(163,23,31,.5)}
.capsule{padding-left:20px}
.capsule.show{transform:translate(-50%,0)}
.capsule.hide{transform:translate(-50%,150%)!important}
.capsule small{font-size:.58rem;letter-spacing:.2em;color:var(--mute);text-transform:uppercase;display:block;line-height:1.3;text-align:left}
.capsule b{font-weight:500;font-size:.86rem;display:block;text-align:left;line-height:1.3;white-space:nowrap}
.capsule a{background:var(--red);color:var(--cream);text-decoration:none;padding:11px 18px;border-radius:999px;font-size:.8rem;white-space:nowrap}

dialog{border:1px solid var(--wine);border-radius:26px;background:var(--coal);color:var(--cream);max-width:620px;width:calc(100% - 28px);padding:0;margin:auto;text-align:center}
dialog::backdrop{background:rgba(7,5,5,.7);backdrop-filter:blur(4px)}
dialog .dh{padding:30px 26px 6px}
dialog .db{padding:6px 30px 18px;max-height:62vh;overflow:auto;font-size:.9rem;color:#CFC4BF}
dialog .db h4{font-size:.64rem;letter-spacing:.24em;text-transform:uppercase;color:var(--red2);margin:18px 0 4px;font-weight:600}
dialog .df{padding:10px 0 28px}

.rv{opacity:0;transform:translateY(24px);transition:opacity 1s ease,transform 1s cubic-bezier(.2,.7,.2,1)}
.rv.in{opacity:1;transform:none}

@media (max-width:640px){
  body{font-size:15px}
  .duo{flex-direction:column;align-items:center}
  .arch{width:86vw}
  .arch.d2{margin-top:30px}
  .spot.r span{left:auto;right:42px}
  .price-chip{right:0;top:4%}
  .flow{flex-direction:column;align-items:center;gap:26px}
  .flow div::before{display:none}
  .edge-tabs button{padding:8px 11px;font-size:.74rem}
  .face{padding:34px 22px}
  .flip-in{min-height:460px}
  .qbox{padding:36px 16px 30px}
  .qbox .yn button{min-width:100px}
  .capsule small{display:none}
  footer{padding-bottom:110px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .rv{opacity:1;transform:none}
}